I thought Japan was a crazy consumer at 57 kgs a year(details in another post) but South Koreans eat twice the amount of seafood compared to the Japanese? That is some news.
And that figure is not including poultry, pork, beef etc.

Math

Average Per capita consumption of fish in south korea(50 million population)
6,100,000 tonnes= 6,100,000,000 kgs/50,000,000 people=610/5=122 kgs/person per year.